Free insulin-like growth factor I:: Are we hunting a ghost?

被引:29
作者
Bang, P [1 ]
Ahlsén, M [1 ]
Berg, U [1 ]
Carlsson-Skwirut, C [1 ]
机构
[1] Astrid Lindgren Childrens Hosp, Karolinska Inst, Dept Woman & Child Hlth, Paediat Endocrinol Unit, S-17176 Stockholm, Sweden
关键词
insulin-like growth factor I; insulin-like growth factor binding proteins; assays; free insulin-like growth factor I; free dissociable insulin-like growth factor I; serum; methodology; bioavailability;
D O I
10.1159/000063482
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
During the last decade, there has been an increasing number of publications reporting concentrations of free dissociable insulin-like growth factor I (IGF-I) in serum or plasma. The goal for attempting to measure free IGF-I in a serum sample in vitro has been to obtain information about the bioactivity of IGF-I in target tissues, and thus relate a measurable parameter to biological responses such as longitudinal growth or glucose disappearance rate. In this review, the serum free IGF-I approach is placed into a physiological perspective. In addition, methodological aspects are discussed and suggestions for the validation of free IGF-I assays are presented. Copyright (C) 2001 S. Karger AG, Basel.
引用
收藏
页码:84 / 93
页数:10
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